Date: Fri, 7 Nov 2008 00:36:14 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-current@freebsd.org Cc: Alexey Shuvaev <shuvaev@physik.uni-wuerzburg.de>, freebsd-usb@freebsd.org Subject: Re: USB4BSD release candidate number 3 - request for review Message-ID: <200811070036.15816.hselasky@c2i.net> In-Reply-To: <20081106210300.GA1595@wep4035.physik.uni-wuerzburg.de> References: <200810251925.47273.hselasky@c2i.net> <20081106191230.GA47600@wep4035.physik.uni-wuerzburg.de> <20081106210300.GA1595@wep4035.physik.uni-wuerzburg.de>
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On Thursday 06 November 2008, Alexey Shuvaev wrote: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a > _witness_debugger() at _witness_debugger+0x49 > witness_checkorder() at witness_checkorder+0x7e6 > _sx_xlock() at _sx_xlock+0x44 > vm_map_lookup() at vm_map_lookup+0x47 > vm_fault() at vm_fault+0xfe > trap_pfault() at trap_pfault+0x1fa > trap() at trap+0x201 > calltrap() at calltrap+0x8 > --- trap 0xc, rip = 0xffffffff804b2466, rsp = 0xfffffffeba7f8ac0, rbp = > 0xfffffffeba7f8b00 --- bcopy() at bcopy+0x16 > usb2_bdma_pre_sync() at usb2_bdma_pre_sync+0x35 > usb2_bdma_work_loop() at usb2_bdma_work_loop+0x29b > usb2_command_wrapper() at usb2_command_wrapper+0x76 > usb2_callback_wrapper() at usb2_callback_wrapper+0xfd > usb2_command_wrapper() at usb2_command_wrapper+0x76 > usb2_callback_proc() at usb2_callback_proc+0x68 > usb2_process() at usb2_process+0xc0 Hi Alexey, This looks more like a busdma problem to me. "bcopy()" is called from within "bus_dmamap_sync()". Maybe you can figure out if it is the source or the destination address that fails? Looks like your system has started bouncing data to the 32-bit address range. --HPS
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